#cores	wall_clock[s]/iteration		Parallel eff. [%]	gridpts/MPI rank
288	1.041880E+00			100%			131712
576	5.209380E-01			100%			65856
1152	2.605300E-01			100%			32928
2304	1.377140E-01			95%			16464
4608	8.045747E-02			81%			8232
9216	5.640823E-02			58%			4116